Assuming that 3:5 is Teagan to Sadie: Teagan has 90 pieces of candy and Sadie has 150 pieces of candy.
1) 3 (Teagan’s share) + 5 (Sadie’s share) = 8 (total shares).
2) 240 (total candy)/8 (total shares) = 30 (each share)
3) 3 (Teagan’s share) • 30 (amount of candy in each share) = 90 (Teagan’s amount is candy)
4) 5 (Sadie’s share) • 30 (amount of candy in each share) = 150 (Sadie’s amount of candy).
Check:
90 + 150 = 240